Massachusetts is a great place to do business. Whether you’re just starting out, looking to expand your business, or keeping up with day-to-day operations, many resources are available online to assist you.


Browse, search, and apply for all open bids for contracts with the Commonwealth. When you register with COMMBUYS, you can also apply for the Small Business Purchasing Program.


If you’re already a vendor for the Commonwealth, track and manage your payments through VendorWeb.


All businesses in Massachusetts will transition from WebFile for Business to the new tax portal, MassTaxConnect.

Unemployment Insurance (UI) Online

Register your business, file quarterly wage records, and pay UI taxes through the UI online portal.

Corporate Records & Filings

If your business is a corporation, you'll need to file your records and certificates with the state.

Small Business Guides

Find information on starting, growing, and operating a business in Massachusetts.

Why Massachusetts?

Learn why Massachusetts is the right choice for your business, including information on local cities and towns, key industries in the state, and employment statistics.


WebFile for Business will shut down to transfer account information to MassTaxConnect from November 21 until November 30. If you anticipate having transactions during that time, here is information about what you can do.



UI Online for Employers